Brand new iMac loosing connection?

Yesterday I purchased a 21" iMac which I love but I'm having a few problems...

My internet is intermittent on the iMac. Sometimes it works at lightning speed and other times it doesn't work at all, it was fine yesterday from the moment I got it until this morning.

The actual wifi connection is showing 4 bars, works perfectly on all my other devices so it must be something to do with my iMac.

When I go System Prefs > Network it shows Wi-fi in green and saying it's connected but this sometimes goes orange and sometimes it drops the network completely and then reboots itself and the light goes orange again and the wifi says 'on' rather than connected.

As I run a home business it's pretty important that i get this working again!

Yesterday I purchased a 21" iMac which I love but I'm having a few problems...

My internet is intermittent on the iMac. Sometimes it works at lightning speed and other times it doesn't work at all, it was fine yesterday from the moment I got it until this morning.

The actual wifi connection is showing 4 bars, works perfectly on all my other devices so it must be something to do with my iMac.

When I go System Prefs > Network it shows Wi-fi in green and saying it's connected but this sometimes goes orange and sometimes it drops the network completely and then reboots itself and the light goes orange again and the wifi says 'on' rather than connected.

As I run a home business it's pretty important that i get this working again!

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